我使用的是next js、next auth和一个自定义后端（flask），在这里我使用的是用jwt令牌保护的API端点。在下一个js前端中，我希望使用useSession挂钩访问这个jwt标记，以便向这个API端点发出请求。有了CredentialsProvider，一切都能正常工作。我能够注册和登录一个用户，并可以获得访问jwt令牌。当我使用useSession和凭据登录时，我有以下格式的数据，这是我想要的（token.sub是我的jwt访问令牌）：

{
    "data": {
        "session": {
            "user": {},
            "expires": "2023-02-06T21:35:50.296Z"
        },
        "token": {
            "sub": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmcmVzaCI6ZmFsc2UsImlhdCI6MTY3MzEyNzM1MCwianRpIjoiZDJmODIwZjAtOGYxOS00Y2Q5LTk0Yxxxxxxx",
            "iat": 1673127350,
            "exp": 1675719350,
            "jti": "53b9fcaa-3aa9-4567-9381-341231144e72"
        }
    },
    "status": "authenticated"
}

字符串
然而，当我使用谷歌登录时，我得到的格式是：所有我想要的是从我的后端获得jwt访问令牌。

{
    "data": {
        "session": {
            "user": {
                "name": "google name",
                "email": "google email",
                "image": "google pic"
            },
            "expires": "2023-02-06T21:24:09.905Z"
        },
        "token": {
            "name": "google user name",
            "email": "google email",
            "picture": "google pic",
            "sub": "115092xxxxxxx",
            "iat": 16731xxxx,
            "exp": 1675xxxx6,
            "jti": "1fc246fa-xxxxxx"
        }
    },
    "status": "authenticated"
}

型
这是下一个身份验证的代码。为了获得google登录的访问权限，我添加了登录回调，并在那里添加了请求到我的后端，以获得jwt访问令牌。

import NextAuth, { NextAuthOptions } from "next-auth";
import CredentialsProvider from "next-auth/providers/credentials";
import GoogleProvider from "next-auth/providers/google"
import API from "../../../API";
import axiosHandler from "../../../axios-handler";

const authOptions = {
  session: {
    strategy: "jwt",
  },
  providers: [
    CredentialsProvider({
      type: "credentials",
      credentials: {},
      authorize: async (credentials, req) => {
        const loginResponse = await axiosHandler.post(credentials.isRegister? API.REGISTER :API.LOGIN, credentials)
        if(loginResponse.data){
          return {
            id: loginResponse.data.token,
            token: loginResponse.data.token,            
          }
        }
        return null
      },
    }),
    GoogleProvider({
      clientId: process.env.GOOGLE_CLIENT_ID,
      clientSecret: process.env.GOOGLE_CLIENT_SECRET,
    })
  
  ],
  pages: {
    signIn: "/auth/signin",
  },
  callbacks: {
    async session({ session, user, token }) {
      return {session, user, token}
    },

    async jwt({ token, user, account, profile, isNewUser }) {
      return token
    },
    async signIn({user, account}){
      if(account?.provider ==="google"){
        const googleAuthData = {
          name: user.name,
          email: user.email,
          image: user.image,
          authProvider: 'google',
          password: ''
      }
      const loginResponse = await axiosHandler.post(API.LOGIN, 
        {
          name: googleAuthData.name, 
          email: googleAuthData.email, 
          secretKey:"xxx"})
      if(loginResponse.data){
        return {
          ...user,
          id: loginResponse.data.token,
          token: loginResponse.data.token
        }
      }
      }
      return user
      
    }
  },
};

export default NextAuth(authOptions);

型